My bf and I had unprotected sex 5 days after my ovulation date. I took a plan B pill less than 3 days after the night we had sex. 5 days after sex I started having brown discharge. My period was set to start in about 3-4 days after I started getting this discharge so I assumed it was just my period coming in. I recently read that having brown discharge before a period, especially if you’ve had unprotected sex recently is an early sign of pregnancy (implantation bleeding)...I’m not sure what to do or what to believe. Any thoughts? I’m getting pretty scared about all of this.